The expletive-filled scuffle ends after a passenger presses the train’s emergency button and the fiancee of one of the men steps in to break it up.

Victoria Police spokeswoman Belinda Batty said police attended the station about 2.30pm and spoke to the men believed to be involved in the altercation.

She said neither wished to make a statement, meaning police must rely on witnesses to come forward to further investigate the incident.

It is not known what sparked the fight.

Deputy Commissioner Graham Ashton said the fact people going about their business had to witness the violence was “disgraceful”.

“We absolute abhor this kind of behaviour,” he said. “It’s a sad situation that these people feel free to engage in this sort of activity on the public transport system.

“I understand in this particular case they have been spoken to and at this stage there’s no complaint for us to deal with.

“But certainly if the people who did witness that, certainly police would like to know more about it.”

This altercationon the Sunbury line halted trains.Source: Supplied

The footage shows the men arguing near the train door with one, dressed in a blue T-shirt, yelling: “No dumb c*** f****** starts arguments with strangers.”

A third man then tries to intervene before being pushed away by the second man, dressed in a black shirt, who then raises his fists and begins moving side to side in a boxing stance, saying: “Come on f*****, let’s go.”

The man in blue raises his arms and asks “why?” before swinging a right-hook at his opponent.

A scuffle begins and the man in black returns fire, punching the other man in the head.

The men then go out of frame, but the man in blue can be heard shouting: “Get him off me. Get the guy off me.”

He continues to yell as the men wrestle: “Why’d you f****** start me c***? Why’d you start me?”

The man in blue tells her to “get your fiancé off me” as the man in black gets him in a headlock, to which the woman responds: “I’m sorry, but you asked for it.”

The man in blue fires back: “he asked for it, he started it.”

The train’s alarm begins to sound, but the argument continues until the woman gets her partner to break away.

As the man in black heads towards the train exit, his rival shouts: “yeah you better leave”, and kicks him through the door.

Metro spokeswoman Larisa Tait said the fight caused the Sunbury-bound train to halt at Ginifer about 2.15pm, causing a half-hour delay on the line, before ultimately terminating at the station at 2.45pm.

Ms Tait said a carriage window was broken, likely as a result of the brawl.

“As soon as our driver was alerted to this incident, she contacted the central control room who immediately called the police to attend,” she said.

“If any of our customers ever witness this type of incident, we urge them to contact the driver via the red emergency button on every train carriage, or to call the police.”

Anyone with information is urged to call Crime Stoppers on 1800 333 000 or visit crimestoppers.com.au.

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